Waterproof hammer wafer type check valve
By designing a waterproof hammer structure in the clamp check valve, the spring and buffer plates are used to buffer the return water flow, the valve plate loosening caused by the water hammer effect is solved, which improves the service life and avoids the occurrence of the water hammer effect.
Patent Information
- Application Number
- CN202421630500.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-11
AI Technical Summary
After the existing clamp check valve is closed, the water return from the pipe and valve body will cause a water hammer effect, causing the valve plate to loosen and affect its service life.
A waterproof hammer-to-clip check valve is designed to buffer the return water flow and reduce the impact on the valve plate by combining the mounting plate, the first spring, the flow chamber, the guide rod, the limiting plate, the buffer plate and the second spring.
It effectively reduces the impact of the return flow on the valve plate, prevents the valve plate from loosening, improves the service life of the clamp check valve, and avoids the occurrence of water hammer effect.
Smart Images
Figure CN222798224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline valves, in particular to a waterproof hammer proof clamp-type check valve. Background Art
[0002] In hot and cold water systems, the sudden opening and closing of water-using equipment, such as single-handle mixing faucets, ball valves, electric valves, etc., will cause water hammer. The rapid opening and closing of valves causes water pressure vibrations, which extend in the pipeline in the form of overpressure waves. When encountering obstacles such as other water-using components or pipeline elbows, the overpressure waves will be reflected back; thus, it will cause damage to water-related control components in connecting pipelines and other waterways, and will also be accompanied by noise.
[0003] Check valves are also called one-way valves or non-return valves. Their function is to prevent the backflow of the medium in the pipeline. Wafer check valves belong to check valves. At present, when the valve plate of the existing wafer check valve is closed, the water in the fluid pipeline and the wafer check valve body will flow back, causing impact on the valve plate, and then causing water hammer effect. Then, when the water flow impacts the valve plate, it is very easy to cause the valve plate to be subjected to a large force, causing its position to loosen. In the long run, it will affect the service life of the wafer check valve body. For this reason, we propose a wafer check valve that prevents water hammer. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a waterproof hammer-proof wafer-type check valve, which solves the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a waterproof hammer-proof wafer-type check valve, comprising a wafer-type check valve body, a valve seat is fixedly installed inside the wafer-type check valve body, a sliding rod is slidably installed in the middle of the valve seat, a water inlet is arranged inside one side of the wafer-type check valve body, a valve plate is fixedly installed on one end of the sliding rod, the valve plate cooperates with the water inlet, a mounting plate is fixedly installed on the other end of the sliding rod, a first spring is installed on the outer side of the sliding rod and on one side of the valve plate, the first spring cooperates with the valve seat, a plurality of flow chambers are opened inside the valve seat, a guide rod is fixedly installed on the middle side of the valve plate and the mounting plate, the guide rod passes through the interior of the flow chamber, a limiting plate is fixedly installed on the outer side of the middle part of the guide rod, a buffer plate is slidably installed on the outer side of the guide rod, a second spring is installed on the outer side of the guide rod and on one side of the buffer plate, and the buffer plate cooperates with the second spring.
[0006] Preferably, a first guide ring is fixedly installed inside the wafer-type check valve body, a water outlet is provided in the middle of the first guide ring, and second guide rings are fixedly installed on both sides of the valve seat.
[0007] Preferably, a guide head is fixedly mounted on one side of the mounting plate.
[0008] Preferably, flanges are provided on both sides of the wafer-type check valve body.
[0009] Preferably, a hole for the sliding rod to cooperate is opened inside the middle part of the valve seat.
[0010] Preferably, a hole cooperating with the guide rod is opened inside the buffer plate, and the buffer plate cooperates with the limiting plate.
[0011] The utility model provides a waterproof hammer-proof clamp-type check valve, which has the following beneficial effects:
[0012] 1. The anti-water hammer wafer-type check valve is matched with a mounting plate, a first spring, a flow chamber, a guide rod, a limit plate, a buffer plate and a second spring. When the valve plate is closed, water in the pipeline and the wafer-type check valve body flows back from the water outlet, the returned water flow can be buffered by the buffer plate and the second spring, thereby effectively reducing the impact of the returned water flow on the valve plate and causing it to loosen, thereby increasing its overall service life.
[0013] 2. The anti-water hammer wafer-type check valve can buffer and guide the backflow water flow through the cooperation of the first guide ring, the second guide ring and the guide head, further reducing the impact force of the backflow water flow, avoiding the water hammer effect, and also improving its overall service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model;
[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in .
[0017] In the figure: 1. Wafer-type check valve body; 2. Valve seat; 3. Sliding rod; 4. Water inlet; 5. Valve plate; 6. Mounting plate; 7. First spring; 8. Flow chamber; 9. Guide rod; 10. Limit plate; 11. Buffer plate; 12. Second spring; 13. First guide ring; 14. Water outlet; 15. Second guide ring; 16. Guide head; 17. Flange. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] See also Figures 1 to 3The utility model provides a technical solution: a waterproof hammer wafer check valve, comprising a wafer check valve body 1, a valve seat 2 is fixedly installed inside the wafer check valve body 1, a slide rod 3 is slidably installed in the middle of the valve seat 2, a hole matched with the slide rod 3 is opened inside the middle of the valve seat 2, a water inlet 4 is arranged inside one side of the wafer check valve body 1, a valve plate 5 is fixedly installed at one end of the slide rod 3, the valve plate 5 is matched with the water inlet 4, a mounting plate 6 is fixedly installed at the other end of the slide rod 3, a first spring 7 is installed on the outer side of the slide rod 3 and on one side of the valve plate 5, the first spring 7 is matched with the valve seat 2, a plurality of flow chambers 8 are opened inside the valve seat 2, and the valve plate 5 is fixedly installed at one end of the slide rod 3. A guide rod 9 is fixedly installed on the middle side of the mounting plate 6, and the guide rod 9 passes through the interior of the circulation chamber 8. A limit plate 10 is fixedly installed on the outer side of the middle part of the guide rod 9, and a buffer plate 11 is slidably installed on the outer side of the guide rod 9. A hole cooperating with the guide rod 9 is opened inside the buffer plate 11, and the buffer plate 11 cooperates with the limit plate 10. A second spring 12 is installed on the outer side of the guide rod 9 and on one side of the buffer plate 11, and the buffer plate 11 cooperates with the second spring 12, wherein the limit plate 10 is located inside the circulation chamber 8, and when the valve plate 5 is closed, it can ensure that the buffer plate 11 stays inside the circulation chamber 8, and then when the water flows back to the circulation chamber 8, the water flow can be effectively buffered.
[0020] Flanges 17 are provided on both sides of the wafer-type check valve body 1, a first guide ring 13 is fixedly installed inside the wafer-type check valve body 1, a water outlet 14 is provided in the middle of the first guide ring 13, second guide rings 15 are fixedly installed on both sides of the valve seat 2, and a guide head 16 is fixedly installed on one side of the mounting plate 6, wherein the inner sides of the first guide ring 13 and the second guide ring 15 and one side of the guide head 16 are provided with guide angles, which can guide the fluid when the water flows back after the valve plate 5 is closed to avoid direct contact between the water flow and the first guide ring 13, the second guide ring 15 and the guide head 16 to cause impact on them.
[0021] In summary, when the anti-water hammer wafer check valve is used, water flows into the wafer check valve body 1 through the water inlet 4, and the valve plate 5 and the slide rod 3 are pushed to move by the pressure of the water flow, so as to squeeze the first spring 7. When the valve plate 5 moves, the guide rod 9 and the limit plate 10 will move together, and then the buffer plate 11 will be pushed away from the flow cavity 8 by the supporting force of the second spring 12, and then the water will flow through the flow cavity 8 and be discharged from the water outlet 14. When the water flow pressure is reduced, the water pressure is not enough to push the valve plate 5 to move. When the first spring 7 is squeezed, the first spring 7 will rebound, thereby pushing the valve plate 5 to close the water inlet 4. At the same time, the guide rod 9 drives the buffer plate 11 to move back to the flow chamber 8 through the limit plate 10. When the water in the pipeline and the clamp-type check valve body 1 flows back through the water outlet 14, the first guide ring 13, the second guide ring 15 and the guide head 16 are used to guide and buffer the returned water flow, so that the water flow flows back into the flow chamber 8 and contacts the buffer plate 11, and the water flow can be buffered by the second spring 12 and the buffer plate 11.
[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A waterproof hammer proof wafer check valve, comprising a wafer check valve body (1), characterized in that: A valve seat (2) is fixedly installed inside the wafer-type check valve body (1), a slide rod (3) is slidably installed in the middle of the valve seat (2), a water inlet (4) is arranged inside one side of the wafer-type check valve body (1), a valve plate (5) is fixedly installed on one end of the slide rod (3), the valve plate (5) cooperates with the water inlet (4), a mounting plate (6) is fixedly installed on the other end of the slide rod (3), a first spring (7) is installed on the outer side of the slide rod (3) and on one side of the valve plate (5), the first spring (7) is in contact with the valve seat (2) cooperates, a plurality of flow chambers (8) are opened inside the valve seat (2), a guide rod (9) is fixedly installed on the middle side of the valve plate (5) and the mounting plate (6), the guide rod (9) passes through the inside of the flow chamber (8), a limit plate (10) is fixedly installed on the outer side of the middle part of the guide rod (9), a buffer plate (11) is slidably installed on the outer side of the guide rod (9), a second spring (12) is installed on the outer side of the guide rod (9) and on one side of the buffer plate (11), and the buffer plate (11) cooperates with the second spring (12).
2. The waterproof hammer proof wafer check valve according to claim 1, characterized in that: A first guide ring (13) is fixedly installed inside the wafer-type check valve body (1), a water outlet (14) is provided in the middle of the first guide ring (13), and second guide rings (15) are fixedly installed on both sides of the valve seat (2).
3. The waterproof hammer proof wafer check valve according to claim 1, characterized in that: A flow guide head (16) is fixedly mounted on one side of the mounting plate (6).
4. The waterproof hammer proof wafer check valve according to claim 1, characterized in that: Flanges (17) are provided on both sides of the wafer-type check valve body (1).
5. The waterproof hammer proof wafer check valve according to claim 1, characterized in that: A hole for matching with the sliding rod (3) is provided inside the middle of the valve seat (2).
6. The waterproof hammer proof wafer check valve according to claim 1, characterized in that: A hole cooperating with the guide rod (9) is provided inside the buffer plate (11), and the buffer plate (11) cooperates with the limiting plate (10).